Abstract
Traditional tsunami catalogues are conceived as a collection of tsunamis classified by the generating cause, providing a general description of the effects observed for each tsunami. Those catalogues, even if they provide fundamental information, are not suitable for producing an exhaustive picture of the geographical distribution of the tsunami effects. In this paper we introduce the new Italian Tsunami Effects Database (ITED), a collection of evidence documenting the effects along the Italian coasts from historical times to present. The database comes forth the Euro-Mediterranean Tsunami Catalogue (EMTC) and focusses on the effects of tsunamis observed along the Italian coasts providing descriptive and quantitative information for each OP. The information reported in ITED does not only concern the effects produced by Italian tsunamis, but also those effects produced by tsunamis originated outside the Italian territory. ITED contains 318 OPs, related to 73 Italian tsunamis and to four tsunamis which occurred outside Italy. The database can be accessed through a WebApp that displays for each OP the description of effects, quantitative data (run-up, inundation, withdrawal, etc.) and tsunami intensity with the corresponding bibliographic references. The database also provides the tsunami intensity distribution along time (tsunami-history) for each site, allowing the end user to know how a place has been affected by tsunamis over the time. The information contained in ITED makes this database a useful tool to understand how tsunamis have affected the Italian territory and emphasizes the importance of studying the tsunami hazard along the Italian coasts.
Highlights
Tsunami catalogues can contribute to identify the geographical areas that have experienced these kind of events, which can be a starting point for hazard and risk assessments
The Italian Tsunami Effects Database (ITED) database comes forth from the information contained in Euro-Mediterranean Tsunami Catalogue (Maramai et al, 2014) related to effects of tsunamis observed or registered along the Italian coasts
ITED subdivides the general tsunami information contained on Euro-Mediterranean Tsunami Catalogue (EMTC), geographically locating the specific information for each affected site and classifying the effects observed into intensity classes
Summary
Tsunami catalogues can contribute to identify the geographical areas that have experienced these kind of events, which can be a starting point for hazard and risk assessments. Appid 8329c2ad9b7f43c18562bdddc6c1ad26), EMTC 2.0 contains information such as date, time, reliability, cause, intensity, magnitude (if seismic), coordinates, macroseismic intensity and a detailed tsunami description including a list of the related bibliographical references that is reachable from the pop-up generated when clicking on each point of the layer. ITED contains tsunami observations related to 77 tsunamis, 73 being originated within the Italian territory and four triggered by FIGURE 3 | Screenshot of the WebApp showing ITED_runup (black bars) and ITED_inundation (blue halos) layers; symbols are proportional to the measured values (Service Layer Credits: sources: ©Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, NOAA, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), ©swisstopo, ©OpenStreetMap contributors 2019. It can be seen that the coasts of Sicily and Apulia are exposed to the tsunamis generated by the subduction zone of the Hellenic Arc, while the coasts of Sardinia and Liguria may be affected by the tsunamis generated by the Algerian thrust zone
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